Attachment for scales



E. A. LA 00w.

ATTACHMENT FOR SCALES APPLICATION FILED JULY 18, 1919.

1,402,774. Patented Jan. 10, 1922.

q UNITED STATES r EVERETT A. LA DOW, OF CLEVELAND, OHIO.

To all whom itmay concern:

ATENT OF FlCE.

ATTACHMENT r03 SCALES.

v Application filed July 18,

Be it known that I, EVERETT A. LA Dow, a citizen of the United States, and a resident of Cleveland, county of-Cuyahoga, and State of Ohio, have invented a new and useful Improvement in Attachments for Scales, of

which the following is a specification, the

principle of the invention being herein explained and the best mode in which I have contemplated applying that principle so as to distinguish itfrom other inventions.- p

The present invention, relating as indicated, to attachment-for scales is directed to a simple device adapted for convenient attachment to a steelscale or the like for rendering the same useful as a drill gauge, as well as providing convenient means for attaching the scale to the edge of the pocket of the user to prevent its loss. To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims. The annexed drawing and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of the inventionmaybe used.

In said annexed drawing Fig. 1 is a perspective view of a scale with my device attached thereto; Fig. 2 is atransverse section on the line 22 in Fig. 1 Fig. 3 is a transverse section on the line 3-8 in Fig. 4; and Fig. 4 is a section on the line 44t in Fig. 3.

In Fig. 1 there is shown a steel scale 1 of the usual type having a series of graduations 2 along one edge with indicating memhere as is customary 111 such scales, the scale being graduated in units either of the Eng:

lish or metric system. Fixtending transversely of the scale is a plate-like member having an extenslon 4 extending beyond the graduated edge of the scale. One edge 5 of this extension 4 is formed at an angle of approximately 120 degrees to the adjacent edge 6 of the scale and is graduated in the same units as is such adjacent edge. The plate 3 is provided with a recess or notch 7 along one side in such a position as to show the indicating number attached to the graduation lying opposite or directly under that edge of the plate 2 for convenience in reading and to make it unnecessary to shift the scale to read a desired numeral. The ad- 1919. Serial. No. 311,821

acent edge 8 of the plate is formed at a right angle to the scale toallow the same to be used as a square if necessary.

The plate 3 is provided with a raisedportion.9 at its opposite side and is then car-- desired position against accidental movement, while to secure an exact positioning of the attachment onthe scale a small set screw 11 is adjustably mounted in the flange or end member of the plate 2,- and can be ad ustedto engage against the side of the scale and lock the tion along the scale.

The

plate in any desired posiw Specification of Letters Patent. Patented Jan. 10, 1922. i

Two, small lugs or wings 12- are stamped up from the body of the plate 2 and stand at right angles thereto, and between these lugs 1s mounted a pin or stud 13, upon which there is plvotally mounted a clasp 14, while a coil spring 15, having one end against the plate 3, and the other operating against the clasp or clip 14. This clip provides a quick and secure means for fastening the scale lnto the pocket, the engaging end 16 of the clip being momentarily lifted to engage over the edge of the pocket and then being allowed to clamp the cloth between this end and the scale. V

The attachment of myv improved device which may be used in the usual manner, and

for the usual purposes. On the other hand, the edge 5 of the extension l of the plate serves as a guide for measuring the angle given to a drill when. being ground. The angle of the end of the drill is usually from 58 to 60 degrees, and thus the included angle between the edge 5 and the adjacent edge 6 of the scale should be 118 to 120 degrees, the edge 5 on the plate serving as a gauge against which to measure the angle of the drill during the grinding of it.

The present device is extremely simple in its construction and manufacture and en larges the usefulness of the ordinary scale, besides providing a secure means for carrying the same without injury or loss.

Other modes of applying the principle of my invention may be employed instead of straight edge of the main scale membei,

the one explained, change being made as re gards the mechanism herein disclosed, provided the means stated by anyof the following claims or the equivalent of such stated means be employed.

I therefore particularly point out anddistinctly claim as my invention l r 1. .In combination, a main scale member having a graduated straight edge, and a sup plemental scale member slidably mounted thereon and having a graduated straight edge extending at an oblique angle to the said supplemental scale member having a body portion surrounding and slidably engaging the sides of the mam scale member,

said body portion having an enlarged extension at one end to PIOVKlG a gripping means "for adjusting said supplemental scale memher along the main scale member.

2. In combination, a main scale member 7 having a graduated straight edge, and a supplemental scale member slidably mount- .ln s.

ed thereon and having a graduated straight edge extending at an oblique angle to the straight edgeof the main scale member, said supplemental scale member having a body portion surrounding and slidably engaging the sides of the main scale member, said body portion provided With a' cut-out porigned by me this 10th day of July, 1919. EVERETT A. LA DOW. 

